Inverted burner.



y J. J. WBYER.

INVERTED BURNER. A

APPLICATION FILED FEB. 15, 1909.

9 3 5&241. atented Sept. 28, 1909.

UNTE

s ernten.

JOSEPH J. WEYER, F CHICAGO, ILLINOIS, ASSIGNOR T@ BLTE da' VVEYER COMPANY, OF CHCAGD, ILLINOIS, A CORPCRATON OF ILLINGIS.

INVEETED BURNER.

Specification of Letterslatent.

Tatented' Sept. 2S, igea.

Application filed February 15, 1959. 'Serial No. 478,690.

device; Fig. 2 is a. central vertical section.

therethrough, and Fig. 3 is a-horizontal section in the line 3 of Fig. 2, looking downward.

ieferring to the drawing, A is a vertical tube, such as is commonly' used in inverted gas-burners, the same being connected in practice to any suitable source of a combusti-Y ble mixture of gas and air adapted when burned to 'form the usual inverted Bunsen flame. It is obvious that the tube A may form part of the gas system proper, or may be supplied with a .mixture of gasolene vapor and air, 4or with otherncombustible gas i as the case may be. The manner'in which the gas is generatedmixed with air forms no part ot my ypresent invention, and such means are therefore not illustrated. The lower end of the tube A carries a tip B,

ywhich is downwardly Haring at its lower .edge and carries the usual gauze C to prev tile condition.

vent back-firing. The tip B also carries two laterally projecting pins D slightly above the flaring lower-portion of the tip.

E is an inverted rag mantle, of the type commonly in use. By rag-mantle, those skilled in the art understand to be meant a mantle .of fabric impregnated with the chemical substances necessary to produce the proper degree of luminosity when heated to i incandescenlce,` the fabric-material not being burned out, but remainin g in its soft or texy rag-mantle E is formed into a hemin which is inserted an endless coil-spring F which may, in practice, be constructed in a satis- Ifactory manner of German silver, although `form herein shown and described.

The upper margin of the l The normal size of the springF is con.,- siderably smaller than the flaring lower end of the tip B, and the spring can very readily be slipped over the flaring portion of the tip when its resiliency will cause it to take the position shown in Fig. 2 above the `tiaring end of the tip vand beneath the projecting pins D. The mantle will be held by this means firmly Fixed in position against movement in eiather direction, and when so positioned the fabric can be burned out in the way which has long been common practice. My device is particularly advantageous because of the extreme ease with which fresh mantles can be placed in position. There are many purposes for which inverted lamps are used, where the mantles require frequent replacement, this being particularly true in lamps of the portable type, which are frequently' moved from place to place. The time consumed in applying mantles of the usual form is a ver @large element yin the maintenanceof lamps of` this character, and anything which will minimize the elfort required is exceedingly desirable. Mantles provided with the endless annular spring at their upper edges, as here shown and described, can be placed in position in the manner indicated in a very small fraction of the time required for placing other rag mantles in place. Furthermore, the 'construction is one which makes vit possible to apply mantles of the same lkind to lamps of practically every type upon the market.

l realize that considerable` variation is possible in the details of construction of my improved device, without departing from the spirit of my invention, and I do not intend therefore, to limit myself to the specific What I claim as new and desire to secure by Letters Patent, is-

l. A rag mantle provided at its lopen end with a resilient member adapted to contract :and tightly grip the burner tube lwhen the mantle is placed thereon.

2. A rag mantle provided at its open end; with a spring member adapted to contract and tightly gri the burner tube when the mantle is place thereon.

'3. The combination with a-burner-tube in inverted position provided with an enlarged lower-portion, of a rag-mantle and an endless spring incorporated in the upper-edge cey ' rg-xane amai apte to b sppd ove the enlarged ower-porwnof the tube, and T C bung confined beween the same' and sald stop.

J-OSEFH J. VEYER 1u presence of- CHAS. E. GAYLoRm RALPH A. SCHAEFER. 

